Is GPT-6 Astra or GLM 5.2 (Free) cheaper?

GLM 5.2 (Free) is cheaper on output tokens ($0.00 vs $50.00 per 1M).

Which has the larger context window, GPT-6 Astra or GLM 5.2 (Free)?

GPT-6 Astra has the larger context window (1.1M tokens).

GPT-6 Astra vs GLM 5.2 (Free)

GLM 5.2 (Free) is cheaper on output tokens, while GPT-6 Astra offers a larger context window. Choose GPT-6 Astra or GLM 5.2 (Free) based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-6 Astra	GLM 5.2 (Free)
Provider	ZenMux	ZenMux
Input / 1M tokens	$10.00	$0.00
Output / 1M tokens	$50.00	$0.00
Context window	1.1M	1M
Parameters	—	—
Open weights	No	Yes
Released	Sep 2026	Jun 2026

GPT-6 Astra details →GLM 5.2 (Free) details →

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.